明朝成化年间，朝(cháo )纲(gāng )腐败，奸(jiān )邪(xié )当道(dào )。西(xī )厂东厂为宦官把(bǎ )持，混淆黑(hēi )白，陷害忠良，朝野内外噤若寒蝉。时有赵怀(huái )安（李(lǐ )连杰 饰）等流亡(wáng )剑客挺身而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊。适值此时，风头正劲的西厂